papers

Publications (9)

astro-ph.IM2011

The SONG project and the prototype node at Tenerife

K. Uytterhoeven, P. L. Palle, F. Grundahl +10

SONG (Stellar Observations Network Group) is a global network of 1-m class robotic telescopes that is under development. The SONG prototype will shortly be operational at Observato…

astro-ph.IM2019

Conducting the SONG: The robotic nature and efficiency of a fully automated telescope

M. Fredslund Andersen, R. Handberg, E. Weiss +4

We present a description of "the Conductor", an automated software package which handles all observations at the first Stellar Observations Network Group (SONG) node telescope at t…

astro-ph.SR2018

The mass and age of the first SONG target: the red giant 46 LMi

S. Frandsen, M. Fredslund Andersen, K. Brogaard +12

The Stellar Observation Network Group (SONG) is an initiative to build a worldwide network of 1m telescopes with highprecision radial-velocity spectrographs. Here we analyse the fi…

astro-ph.SR2017

First Results From The Hertzsprung Song Telescope: Asteroseismology Of The G5 Subgiant Star {\Mu}Her

F. Grundahl, M. Fredslund Andersen, J. Christensen-Dalsgaard +26

We report the first asteroseismic results obtained with the Hertzsprung SONG Telescope from an extensive high-precision radial-velocity observing campaign of the subgiant muHerculi…

astro-ph.SR2026

The Stellar Observations Network Group (SONG) -- A Legacy Archive of Stellar Time-Domain Spectroscopy

M. N. Lund, F. Grundahl, M. S. Fredslund +35

The Stellar Observations Network Group (SONG) network has operated for more than a decade, providing long-baseline, high-cadence spectroscopic observations of bright stars and the…

astro-ph.IM2019

Hardware and software for a robotic network of telescopes - SONG

M. F. Andersen, F. Grundahl, J. Christensen-Dalsgaard +7

SONG aims at setting up a network of small 1m telescopes around the globe to observe stars uninterrupted throughout days, weeks and even months. This paper describes the fundamenta…

astro-ph.GA2024

Quasar Outflow Deceleration or Acceleration: Predictions and a Search

Patrick B. Hall, E. Weiss, W. N. Brandt +1

Quasar winds can shock and sweep up ambient interstellar medium (ISM) gas, contributing to galactic quenching. We combine and extend past models of energy-conserving shock bubbles…

astro-ph.CO2013

Modeling quasar accretion disc temperature profiles

Patrick B. Hall, E. S. Noordeh, L. S. Chajet +2

Microlensing observations indicate that quasar accretion discs have half-light radii larger than expected from standard theoretical predictions based on quasar fluxes or black hole…

nucl-ex2023

KATRIN: Status and Prospects for the Neutrino Mass and Beyond

M. Aker, M. Balzer, D. Batzler +159

The Karlsruhe Tritium Neutrino (KATRIN) experiment is designed to measure a high-precision integral spectrum of the endpoint region of T2 beta decay, with the primary goal of probi…